Sheet-steel cutter



Patented June 27, 1.922.

2 SHEETSSHEET 31 mm oz Elli 02mg 5.

F. M. JOSLIN.

SHEET STEEL CUTTER.

APPLICATION FILED MAR. 29. 1920.

1,420,929, V Patented'June 27, 1922. 2 SHEETS-SHEET Z J s. 2. i 57WHweoo FRANK M. J'OSLIN, OF AMSTERDAM, NEW YORK, ASSIGNOR TO IN MANMANUFAC- TUBING COMPANY, INC., OF AMSTERDAM, NEW YORK, A OORFORATION OFNEW YORK.

SHEET-STEEL CUTTER.

Specification of Letters Patent. Patented J 27 1922 Application filed.March 29, 1920. Serial No. 369,486.

To aZZ whom it may concern:

Be it known that I, FRANK M. JosLrN, a citizen of the UnitedStatcs, andresiding at Amsterdam, Montgomery County, State of New York,haveinvented certain new and useful Improvements in Sheet-Steel Cuttersof which the following is a specification.

This invention relates to a machine which is particularly adapted to cutsheets of metal or to groove or score the same so that they may beeasily broken along the line of the groove. The object of the inventionis to provide a machine having cooperating cutters which engage thematerial on opposite sides to cut or score the same and to provide meansfor supporting one of said cutters and the work receiving table so thatsaid parts may be adjusted toward and from the other cutter tocompensate for wear and to ac commodate materials of differentthicknesses. The invention further contemplates improvements in variousdetails of construction by which a convenient, durable and efficientmachine is produced.

The invention is embodied in the construction shown in the accompanyingdrawings in which:

Figure 1 is a front elevation of the machine; V

Figure 2 is a cross section on the line 2-2 of Figure 1 showing certainparts in section and others in plan;

Figure 3 is a sectional view on the line 3-3 of Figure 2;

Figure 4 is a perspective view showing the details of the work feedingdevice.

Referring to the mechanism in detail 10 represents suitable standardsfor supporting the machine, a base 11 being'mounted on the saidstandards. Secured to said base ll and extending upwardly therefrom is acurved supporting frame 12 in'which certain parts of the mechanism aremounted. The cutting mechanism proper includes the shaft-13 to which issecured a circular cutter 14, this cutter being mounted upon a sleeve 15which is secured to said shaft so as to rotate therewith. The shaft 13is journaled at each end in the curved sup-porting frame 12 of therotated, the rotation of this shaft causing the rotation of the circularcutter 14. The shaft 18 extends through the top frame 12 parallel to theshaft 13 and said shaft 18 is of such length that the hand wheel19 forrotating the same is arranged in convenient position to be grasped bythe operator. It is to be understood that instead of the hand wheel 19any suitable power mechanism may be provided for rotating the shaft 18.

Arranged below the cutter 14is a second cutter 20 which is provided witha sleeve portion 21 fixed to the shaft 22, this shaft being positioneddirectly beneath the shaft 13 and being mounted to rotate freely instandards 23 and 24, said standards being rigidly mounted upon asupporting member 25 which is pivoted at one side to the base 11 of themachine. The pivotal connection between the supporting member 25 and thebase 11 consists of spaced bearings 26 through which a pivot rod 27passes, this pivot rod also passing through openings provided inenlarged portions 28 ,of said supporting member 25. It will be seen thatthe pivotal connection between, the member 25 and the base 11 isarranged at a considerable distance to one side of the shafts 13 and 22,the result being that when the shaft 22 is adjusted toward and from theshaft 13, as later described, it will always be maintained in a'position substantially beneath the shaft 13. Means are provided foradjusting the sup porting member about its pivotwhich consists of athreaded bolt 29 which engages a threaded opening in the base member 11,this threaded bolt being preferably arranged substantially in linedirectly beneath the shafts 13 and 22 and being provided with a handwheel 30 and operating the same. Mounted upon the threaded bolt 29 is alock nut 31 to which a hand Wheel 32 is secured, said lock nut 31constituting means by which the threaded bolt 29 may be locked in anydesired position.

Mounted upon the topof the standards 23 and 24 is a work supportingtable 33, this table being provided with a slot or opening 34 throughwhich the cutter 20 projects. A work gauge 35 slidably engages the worksupporting table which table is provided with a series of graduations 36by which the width of material to be out can be easily determined.

of the curved Means are provided for feeding the work to the cutterswhich consists of a member 37 suitably shaped to engage a dove-tailedgroove in the top of the table, the member 37 being provided with atransverse work engaging portion 38.

When desired the machine may be provided with a supplemental worksupporting member 39 mounted in line with the work supporting table 33and held in position by a brace 40.

The operation of the device will be clear from the foregoing descriptionbut it may be briefly restated at this point. The material which it isdesired to cut or score is placed upon the work supporting table 33 andis engaged by the work feeding device heretofore referred to by which itis forced between the cutters let and 20, the cutter 1 L being operatedthrough the mechanism heretofore described and the cutter 20 beingmounted free to rotate in the standards 23 and 24. To compensate for thewear of the cutters or to accommodate materials of different thicknessesthe cutter 20, together with the work supporting table 33, may beadjusted toward and from the cutter 14,

this adjustment being accomplished through the medium of the pivotedsupporting member 25 and the means heretofore described for adjustingsaid member.

hat I claim as my invention and desire to secure by Letters Patent is:

1. In a machine of the class described, in combination, a base, a shaftsupporting frame extending upwardly therefrom, an upper shaft having itsends journaled in said frame, a circular cutter secured to said shaftintermediate its ends, means for rotating said shaft and cutter, asupporting member pivotally connected to said base at one side ofavertical plane passing through said up per shaft, standards secured tosaid member and extending upwardly therefrom, a lower shaft mounted onsaid standards beneath said upper shaft and carrying a cutter forcooperating with said first named cutter, and means adjustably mountedin said base beneath said lower shaft and said member for adjusting theposition of said lower shaft relative to the upper shaft.

2. In a machine of the class described, in combination, a base, a curvedsupporting frame secured to one side of said base and extending upwardlyand forwardly toward the other side of the base, an upper shaft havingits ends journaled in said frame, a circular cutter secured to saidshaft intermediate its ends, means for rotating said shaft and cutter, asupporting member pivotally connected to said base at one side of avertical plane passing through said upper shaft, standards secured tosaid member and extending upwardly therefrom, a lower shaft mounted onsaid standards with its axis substantially directly beneath the axis ofsaid upper shaft and carrying a cutter for cooperating with said firstnamed cutter, and means adjustably mounted in said base beneath saidlower shaft and said member for adjusting said lower shaft relative tothe upper shaft.

3. In a machine of the class described, in combination, a base, a curvedsupporting frame secured to one side of said base and ex tendingupwardly and forwardly and downwardly to a point above the other side ofsaid base, an upper shaft having its ends journaled in said frame, acircular cutter secured to said shaft intermediate its ends, a driveshaft journaled in said curved frame above said upper shaft, means forcausing rotation of said upper shaft on rotation of said drive shaft, asupporting member pivotally connected to said base at one side of avertical plane passing through said upper shaft, a lower shaft mountedon said member and arrange beneath said upper shaft and carrying acutter for cooperating with said first named cutter, a bolt threadedlymounted in said base and engaging said member at a point substantiallydirectly beneath said last named shaft and means for rotating said bolt.

4. A machine of the class described, coniprising a shaft and means forrotating the same, a circular cutter fixed to said shaft, an adjustablesupporting member mounted below said shaft, a work receiving tablecarried by said supporting member, a shaft carried by said supportingmember and provided with a circular cutter positioned to cooperate withthe first named cutter, means slidably mounted on said table for feedingthe work to said cutters, a work gauge adjustably secured to the table,and means for moving said supporting member to adjust said table andsecond mentioned cutter with reference to the first mentioned cutter.

In testimony whereof I afiix my signature.

FRANK M. lIOSLIN.

